Surah Al-Jumu'ah, Verse 9

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِذَا نُودِيَ لِلصَّلَوٰةِ مِن يَوۡمِ ٱلۡجُمُعَةِ فَٱسۡعَوۡاْ إِلَىٰ ذِكۡرِ ٱللَّهِ وَذَرُواْ ٱلۡبَيۡعَۚ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ إِن كُنتُمۡ تَعۡلَمُونَ٩

yāayyuhā alladhīna āmanū idhā nūdiya lilṣṣalati min yawmi l-jumuʿati fa-is'ʿaw ilā dhik'ri l-lahi wadharū l-bayʿa dhālikum khayrun lakum in kuntum taʿlamūna

O you who have believed, when [the adhān] is called for the prayer on the day of Jumuʿah [Friday], then proceed to the remembrance of Allāh and leave trade. That is better for you, if you only knew.